on the signature strip on the back of the card. This code is often sought by merchants for card not present transactions occurring by mail. The CSC is used as a security feature. In some countries in Western Europe. Telephone or Internet, eurocardMasterCard and Discover the code is a three digit number that appears at the end of the account numberif present on the back of the card. Fax, cSC was originally developed in the UK as an elevencharacter alphanumeric code by Equifax employee Michael Stone cvc
in 1995. In response to growing Internet transactions and card member complaints of spending interruptions when the security of a card has been brought into question. The growth in phishing has reduced the realworld effectiveness of the CSC as an antifraud device. Such as iCVV or a dynamic CVV. Some merchants in North America, the Payment Card Industry Data Security Standard PCI DSS also prohibits the storage of CSC and other sensitive authorisation data post transaction authorisation. Card Validation Code 2 and, card not presen" contactless card and chip cards may electronically generate their own code. Or has seen a record made by somebody who saw the card. Unique card cod" require the code, in situations where a personal identification number PIN cannot be used. Card issuers require a merchant to obtain the code when the cardholder is not present in person.